Examples of Strengthening of Dangerous Reinforced Concrete Structures

Dangerous structures are special structures which require a special approach when strengthening them, since any errors can lead to irreparable consequences. To solve the problems of strengthening of such structures is necessary very carefully, since practically any strengthening involves incorporating the existing (dangerous) structure in the operation and providing any additional impact on such a structure. A few examples of strengthening of reinforced concrete structures in the dangerous state are presented from the archive of works conducted by the Laboratory of engineering methods of study of reinforced concrete structures of A.A. Gvozdev NIIZHB. These examples show that the recommendations for strengthening dangerous structures can vary depending on every concrete case.

P.D. ARLENINOV, Candidate of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.),
S.B. KRYLOV, Doctor of Sciences (Engineering)

Research Institute of Concrete and Reinforced Concrete named after A.A. Gvozdev (NIIZHB), JSC “Research Center of Construction”(6, 2nd Institutskaya Street, 109428, Moscow, Russian Federation)

1. Travush V.I., Konin D.V., Rozhkova L.S., Krylov A.S., Kaprielov S.S., Chilin I.A., Martirosyan A.S., Fimkin A.I. Experimental study of composite structures, working for eccentric compression. ACADEMIA. Arkhitektura i stroitel’stvo. 2016. No. 3, pp. 127–135. (In Russian).
2. Arleninov P.D. Experience of development of strengthening of the reinforced concrete overpass metalwork. Promyshlen-noe i grazhdanskoe stroitel’stvo. 2013. No. 1, pp. 37–38. (In Russian).
3. Arleninov P.D., Krylov S.B. Role of load application scheme for ensuring the bearing capacity of building structures. Zhilishchnoe Stroitel’stvo [Housing Construction]. 2018. No. 4, pp. 30–33. (In Russian).
4. Аrleninov P.D. Krylov S.B. Current state of nonlinear calculations of reinforced concrete designs. Seismostoikoe stroitel’stvo. Bezopasnost’ sooruzhenii. 2017. No. 3, pp. 50–53. (In Russian).
5. Galustov K.Z. Nelinejnaja teorija polzuchesti betona i raschet zhelezobetonnyh konstrukcij. [Nonlinear theory of creep of concrete and calculation of reinforced concrete designs]. Moscow: Izdatelstvo fiz.-mat. litеratury. 2006, pp. 94–110.
6. Shulyat’ev O.A., Mozgacheva O.A., Pospekhov V.S. Osvoe-nie podzemnogo prostranstva gorodov [Development of underground space of the cities]. Moscow: ASV. 2017 510 p.
7. Bondarenko V.M., Rimshin V.I. Primery rascheta zhelezo-betonnykh i kamennykh konstruktsii. [Examples of calcula-tion of reinforced concrete and stone designs]. Moscow: Student, 2014. 539 p.
8. Rimshin V.I., Bondarenko V.M., Bakirov R.O., Nazaren-ko V.G. Zhelezobetonnye i kamennye konstrukcii [Reinforced concrete and stone designs]. Moscow: Student. 2010, 887 p.
9. Alexander M.G. Aggregates and the Deformation Properties of Concrete. ACI Materials Journal. 1996. Vol. 93 (No. 6), pp. 569–577.
10. Larionov E.A., Rimshin V.I., Vasil’kova N.T. Power method of assessment of stability of the compressed reinforced concrete elements. Stroitel’naja mehanika inzhenernyh konstrukcij i sooruzhenij. 2012. No. 2, pp. 77–81. (In Russian).
11. Haranki B. Strength, modulus of elasticity, creep and shrinkage of concrete used in Florida. University оf Florida. 2009. 176 р.